Fluoropolymer

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A fluoropolymer is a fluorocarbon based polymer with multiple strong carbon–fluorine bonds. It is characterized by a high resistance to solvents, acids, and bases.

History

Fluoropolymers were accidentally discovered in 1938 by Dr. Roy J. Plunkett when he was polymerizing tetrafluoroethylene to form polytetrafluoroethylene (PTFE or more commonly known by the DuPont trademark Teflon[1]).

Properties

Fluoropolymers share the properties of fluorocarbons in that they are not as susceptible to the van der Waals force as hydrocarbons. This contributes to their non-stick and friction reducing properties. Also, they are stable due to the stability multiple carbon–fluorine bonds add to a chemical compound. Fluoropolymers may be mechanically characterized as thermosets or thermoplastics. Fluoropolymers can be homopolymers or copolymers.[citation needed]

Applications

They are often applied to manufactured metal parts by electrostatic powder coating, or attached in large sheets with epoxy to line the interior of large metal and non-metal containers.[citation needed]

Examples of monomers used to prepare fluoropolymers

Examples of fluoropolymers

Fluoropolymer Trade names Monomers Melting point
PVF (polyvinylfluoride) Tedlar[2] VF1 200°C
PVDF (polyvinylidene fluoride) Kynar[3] Solef[4] Hylar[5] VF2 175°C
PTFE (polytetrafluoroethylene) Sold by DuPont under the tradename Teflon; sold by Solvay Solexis under the tradenames Algoflon and Polymist TFE 327 °C
PCTFE (Kel-F, CTFE) (polychlorotrifluoroethylene) CTFE
PFA (perfluoroalkoxy polymer) Sold by DuPont under the tradename Teflon. Hyflon[6] PPVE + TFE 305°C
FEP (fluorinated ethylene-propylene) Sold by DuPont under the tradename Teflon HFP + TFE 260°C
ETFE (polyethylenetetrafluoroethylene) Tefzel[7], Fluon[8] TFE + E 265°C
ECTFE (polyethylenechlorotrifluoroethylene) Halar[9] CTFE + E
FFKM Kalrez[10]. Tecnoflon[11]
FPM/FKM Viton[12], Tecnoflon FKM
PFPE (Perfluoropolyether) Fomblin[13] Galden[14]
Nafion
Perfluoropolyoxetane

See also

References

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External links

nl:Fluorpolymeer ja:フッ素樹脂 pl:Polimery fluorowe pt:Fluoropolímero ru:Фторопласт

sv:Fluorplast
  1. ↑ Teflon is a registered trademark of DuPont
  2. ↑ Tedlar is a registered trademark of DuPont
  3. ↑ Kynar is a registered trademark of Arkema, Inc.
  4. ↑ Solef is a registered trademark of Solvay Solexis S.p.A.
  5. ↑ Hylar is a registered trademark of Solvay Solexis S.p.A.
  6. ↑ Hyflon is a registered trademark of Solvay Solexis S.p.A.
  7. ↑ Tefzel is a registered trademark of DuPont
  8. ↑ Fluon is a registered trademark of Asahi Glass Company
  9. ↑ Halar is a registered trademark of Solvay Solexis S.p.A.
  10. ↑ Kalrez is a registered trademark of DuPont
  11. ↑ Tecnoflon is a registered trademark of Solvay Solexis S.p.A.
  12. ↑ Viton is a registered trademark of DuPont
  13. ↑ Fomblin is a registered trademark of Solvay Solexis S.p.A.
  14. ↑ Galden is a registered trademark of Solvay Solexis S.p.A.
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